WO2021111452A1 - Nutritional supplement for animal and aquaculture diet and method of making same - Google Patents
Nutritional supplement for animal and aquaculture diet and method of making same Download PDFInfo
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- WO2021111452A1 WO2021111452A1 PCT/IL2020/051256 IL2020051256W WO2021111452A1 WO 2021111452 A1 WO2021111452 A1 WO 2021111452A1 IL 2020051256 W IL2020051256 W IL 2020051256W WO 2021111452 A1 WO2021111452 A1 WO 2021111452A1
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- omega
- oil
- diet
- nutritional supplement
- ready
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- 235000005911 diet Nutrition 0.000 title claims abstract description 54
- 230000037213 diet Effects 0.000 title claims abstract description 53
- 235000015872 dietary supplement Nutrition 0.000 title claims abstract description 37
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- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000009360 aquaculture Methods 0.000 title description 5
- 244000144974 aquaculture Species 0.000 title description 5
- 235000021354 omega 7 monounsaturated fatty acids Nutrition 0.000 claims abstract description 40
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- 241000972773 Aulopiformes Species 0.000 description 25
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- 235000019515 salmon Nutrition 0.000 description 25
- MBMBGCFOFBJSGT-KUBAVDMBSA-N all-cis-docosa-4,7,10,13,16,19-hexaenoic acid Chemical compound CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCC(O)=O MBMBGCFOFBJSGT-KUBAVDMBSA-N 0.000 description 24
- JAZBEHYOTPTENJ-JLNKQSITSA-N all-cis-5,8,11,14,17-icosapentaenoic acid Chemical compound CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCCC(O)=O JAZBEHYOTPTENJ-JLNKQSITSA-N 0.000 description 16
- 235000020673 eicosapentaenoic acid Nutrition 0.000 description 16
- 229960005135 eicosapentaenoic acid Drugs 0.000 description 16
- JAZBEHYOTPTENJ-UHFFFAOYSA-N eicosapentaenoic acid Natural products CCC=CCC=CCC=CCC=CCC=CCCCC(O)=O JAZBEHYOTPTENJ-UHFFFAOYSA-N 0.000 description 16
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- DVSZKTAMJJTWFG-SKCDLICFSA-N (2e,4e,6e,8e,10e,12e)-docosa-2,4,6,8,10,12-hexaenoic acid Chemical compound CCCCCCCCC\C=C\C=C\C=C\C=C\C=C\C=C\C(O)=O DVSZKTAMJJTWFG-SKCDLICFSA-N 0.000 description 1
- GZJLLYHBALOKEX-UHFFFAOYSA-N 6-Ketone, O18-Me-Ussuriedine Natural products CC=CCC=CCC=CCC=CCC=CCC=CCCCC(O)=O GZJLLYHBALOKEX-UHFFFAOYSA-N 0.000 description 1
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- 241000242594 Platyhelminthes Species 0.000 description 1
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- SECPZKHBENQXJG-UHFFFAOYSA-N cis-palmitoleic acid Natural products CCCCCCC=CCCCCCCCC(O)=O SECPZKHBENQXJG-UHFFFAOYSA-N 0.000 description 1
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- KAUVQQXNCKESLC-UHFFFAOYSA-N docosahexaenoic acid (DHA) Natural products COC(=O)C(C)NOCC1=CC=CC=C1 KAUVQQXNCKESLC-UHFFFAOYSA-N 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/158—Fatty acids; Fats; Products containing oils or fats
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/163—Sugars; Polysaccharides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/13—Prevention or treatment of fish diseases
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/22—Animal feeding-stuffs from material of animal origin from fish
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/26—Animal feeding-stuffs from material of animal origin from waste material, e.g. feathers, bones or skin
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/142—Amino acids; Derivatives thereof
- A23K20/147—Polymeric derivatives, e.g. peptides or proteins
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/115—Fatty acids or derivatives thereof; Fats or oils
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/115—Fatty acids or derivatives thereof; Fats or oils
- A23L33/12—Fatty acids or derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/20—Carboxylic acids, e.g. valproic acid having a carboxyl group bound to a chain of seven or more carbon atoms, e.g. stearic, palmitic, arachidic acids
- A61K31/202—Carboxylic acids, e.g. valproic acid having a carboxyl group bound to a chain of seven or more carbon atoms, e.g. stearic, palmitic, arachidic acids having three or more double bonds, e.g. linolenic
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2250/00—Food ingredients
- A23V2250/18—Lipids
- A23V2250/186—Fatty acids
- A23V2250/1868—Docosahexaenoic acid
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2250/00—Food ingredients
- A23V2250/18—Lipids
- A23V2250/186—Fatty acids
- A23V2250/187—Eicosapentaenoic acid
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2250/00—Food ingredients
- A23V2250/18—Lipids
- A23V2250/186—Fatty acids
- A23V2250/1882—Polyunsaturated fatty acids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Definitions
- the present invention relates to nutritional supplement for animal feed and aquaculture diet. More particularly, the present invention relates to nutritional supplement for animal feed and aquaculture diet that includes omega 3 and omega 7.
- Nutritional supplements are known to increase the general wellbeing of animals and resilience to illnesses.
- Nutritional supplements can be added directly to the animal’s ready-to-use diet or may be given as an additive in addition to the ready-to-use diet.
- Omega-3 Omega-3
- the addition of Omega-3 ’s to the diet is known to increase the immune- resilience of the fish, in particular salmon.
- the immune system is important for resilience to parasite infestation, such as sea lice. Sea lice are parasitic copepods that cause large economic losses to salmon aquaculture worldwide. Frequent chemotherapeutic treatments are typically required to control this parasite, and alternative measures such as breeding for improved host resistance are desirable.
- Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are omega-3 fatty acids (found in oily fish and microalgae). These fatty acids, and their metabolic derivatives - oxylipins, are bio-active molecules, able to inhibit aspects of inflammation including leucocyte chemotaxis, adhesion molecule expression and leucocyte- endothelial adhesive interactions, production of inflammatory cytokines and T cell reactivity. In parallel, EPA and DHA give rise to anti-inflammatory and inflammation resolving and protecting. Mechanisms underlying the anti-inflammatory actions of
- Omega-3 fatty acids include altered cell membrane phospholipid fatty acid composition, disruption of lipid rafts, inhibition of activation of the pro-inflammatory transcription factors - reducing expression of inflammatory genes, and activation of the anti inflammatory transcription factors.
- the biological effects of oxylipins are mediated via interaction with receptors or intracellular effect.
- the nutritional supplement may include a carrier oil; 22-30 wt.% Omega 3; and 8-20 wt.% Omega 7.
- the carrier oil may be a vegetable oil.
- the Omega 3 includes EPA and DHA fatty acids.
- the Omega 3 includes is a mixture of EPA and DHA having ratios in the range of 1:10 to 10:1 wt.%.
- Some additional aspects of the invention may be directed to a ready to use diet, that may include: 0.7-7.5 wt.% Omega 3; 2.0-7.7 wt.% Omega 7; and a mixture comprising protein, carbohydrate and oil.
- the protein may be 5- 50 wt.% of the total weight of the ready to use fish diet.
- the carbohydrate is 5-50 wt.% of the total weight of the ready to use diet.
- the oil is 0.2-30 wt.% of the total weight of the ready to use fish diet.
- the Omega 3 may include EPA and DHA fatty acids.
- the carrier oil may include at least one of: fish oil and vegetable oil.
- the proteins may be originated from at least one of: Soy protein concentrate and animal byproducts
- Some other aspects of the invention may be directed to a method of making a nutritional supplement.
- Embodiments of the method include, adding to a mixer, Omega
- Omega 7 containing oils In some embodiments, the Omega 3 containing oil is at least one of: fish oil, Schizochytrium oil, GM Rapeseed oil and Anchovy oil. In some embodiments, the Omega 7 containing oil is sea Buckthorn oil. In some embodiments, the final amount of Omega 3 in the nutritional supplement is 0.22-30 wt.%. In some embodiments, the final amount of Omega 7 in the nutritional supplement is 8-20 wt.%.
- FIG. 1 shows a flowchart of a method of making nutritional supplement according to some embodiments of the invention
- Fig. 2 is a graph showing feeding rates of juvenile salmons feed with standard a ready-to-use diet in comparison to feeding rates of juvenile salmons feed with a ready- to-use diet according to some embodiments of the invention..
- Some aspects of the invention may be directed to providing and/or making nutritional supplement that can increase the immune-resilience of animals, in particular fish to skin diseases and skin parasites.
- a nutritional supplement may include relatively high amounts of Omega 3 and Omega 7 fatty acids.
- a nutritional supplement according to some embodiments of the invention may be included in a ready-to-eat diet.
- Omega 3 is a known nutritional supplement in fish diets, although having a limited immune-resilience effect. In some embodiments, it was found that an addition of Omega 7 to a nutritional supplement including Omega 3, enhance the effect of the Omega 3 and further to add to the general wellbeing of the fish skin, thus may increase the resilience of the fish to sea lice as discussed herein below.
- a nutritional supplement according to some embodiments of the invention may include 22-30 wt.% Omega 3 and 8-20 wt.% Omega 7 in a carrier oil.
- the oil may be any edible oil, that is edible by a specific animal or group of animals.
- the oil can be a vegetable oil, a fish oil and the like.
- the Omega 3 may include any combination of EPA and DHA fatty acids. In some embodiments, the Omega 3 may include a mixture of EPA to DHA ratios ranging from 1:10 to 10:1. [0017] In some embodiments, the nutritional supplement may be included in a ready-to- use diet. Such ready-to-use diet may include 0.7-7.5 wt.% Omega 3, 2.0-4.0 wt.% Omega 7 and a mixture comprising protein, carbohydrate and oil. In some embodiments, the Omega 3 may include any combination of EPA and DHA fatty acids.
- the protein is 5-50 wt.% of the total weight of the ready to use fish diet.
- the protein may be originated from at least one of: soy protein concentrate and animal byproducts.
- the carbohydrate is 5-50 wt.% of the total weight of the ready to use fish diet.
- the oil is 0.2-30 wt.% of the total weight of the ready to use fish diet.
- the oil may include at least one of: fish oil and vegetable oil.
- Table 1 a fish diet according to some embodiments of the invention
- Fig. 1 is a flowchart of a method of making a nutritional supplement according to some embodiments of the invention.
- step 110 Omega 3 containing oil and Omega 7 containing oil maybe added to a mixer.
- the mixer may be any commercial mixer configured to mix oils, for example, the mixer may include mechanical stirrers, magnetic stirrers, ultrasonic stirrers and the like.
- Table 2 includes some examples for origins of Omega 3 containing oil and
- Table 2 origins of Omega 3 containing oil and Omega 7 containing oil
- the Omega 3 containing oil may include both DHA and EPA.
- the method may include adding DHA to an EPA containing oil, for example, 50 wt. % DHA originated from Schizochytrium oil may be added to Nannochloropsis oil.
- the Omega 3 and Omega 7 containing oils may be mixed in the mixer.
- the final amount of Omega 3 in the nutritional supplement may be 22-30 wt.%.
- the final amount of Omega 7 in the nutritional supplement may be 8-20 wt.%.
- Examples Example 1 [0026] In some embodiments, mixing 100 g of Sea Buckthorn oil with 500 g of Anchovy oil yields 600g of oil containing 57g of Omega-7 and 150g of Omega 3, which results in 11 wt.% Omega 7 and 25 wt.% Omega 3.
- mixing 150g of Sea Buckthorn oil with 300 g of fish oil yields 450 of oil containing 45 g of Omega-7 and 90 g of Omega 3, which results in 10 wt.% Omega 7 and 20 wt.% Omega 3.
- a nutritional supplement according to some embodiments of the invention was provided to salmons and compared to a first diet that includes Omega 3 and a second diet that did not includeOmega 3 or Omega 7.
- Four 500-liter tanks having circular flow-through were used in this study, each was inhibited by 20 Atlantic Salmons. The temperature was 8.7 °C and the salinity 27.4 ppt. Each of the four tanks was provided with a different type of feed (e.g., diet).
- the salmon in the fourth tanks were fed with a diet enriched with nutritional supplement according to some embodiments of the invention containing both Omega 3 and Omega 7 (denoted as [P+03+07]) form a combination of Schizochytrium and Nannochloropsis extract olis.
- the use of the nutritional supplement according to some embodiments of the invention provides the best protection against sea lice and significantly enhanced (-80%) infestation reduction.
- the addition of Omega 3 provides limited protection form sea lice infection, in comparison to the combined effect of Omega 3 and Omega 7.
- Oxylipins function not only as biological “repellants” but are actively involved in a wide range of functions on the skin, mucous and cellular levels. Their biological effects is mediated via interaction with receptors or intracellular effectors. Omega 7, active in skin and mucous membranes, enhances the efficiency and functionality of these receptors, thus enhancing the immune response and effectivity of Oxylipins. It is also noticed that the copepodites reacted to the fish by swimming fast towards them, and once attached “made their decision” weather to stay on the host fish or not. In the case of the different experimental groups their decision varied.
- Fig. 2 shows the daily feeding rate of juvenile salmons fed with the control commercial diet (drack circles) in comparison to juvenile salmons fed with a diet according to embodiments of the invention.
- the initial daily feeding rate was lower for the salmons that were feed with algae enriched diet in comparison to the control diet. At later stages the feeding rate becomes similar for both feeds. This difference could be related to the fact that that the juvenile salmons had been fed normal salmon food in earlier stages prior to the experiment.
- SFA saturated fatty acids
- MUFA monounsaturated fatty acids
- PUFA polyunsaturated fatty acids
- TFA trans fatty acids
- EPA eicosapentaenoic acid
- DPA docosapentaenoic acid
- DHA docosahexaenoic acid
- PA Palmitoleic acid Omega 7 (C 16: ln-7)
- Table 6 the percentage of fatty acids of total fatty acids measured in fish flash of fish fed with diet according to embodiments of the invention and a control diet.
- Table 6 the percentage of fatty acids of total fatty acids measured in fish flash of fish fed with diet according to embodiments of the invention and a control diet.
- a major increase in the amount of fatty acid was detected in the salmon fed with the diet according to embodiments of the invention. More specifically a major increase was presented in the amounts of Omega 3 and Omega 7.
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Abstract
A nutritional supplement is disclosed. The nutritional supplement may be included in a fish diet. The nutritional supplement may include a carrier oil; 22-30 wt.% Omega 3; and 8-20 wt.% Omega 7. In some embodiments, the carrier oil may be a vegetable oil. In some embodiments, the Omega 3 includes EPA and DHA fatty acids. In some embodiments, the Omega 3 includes is a mixture of EPA and DHA having ratios in the range of 1:10 to 10:1 wt.%.
Description
NUTRITIONAL SUPPLEMENT FOR ANIMAL AND AQUACULTURE DIET AND METHOD OF MAKING SAME
FIELD OF THE INVENTION
[001] The present invention relates to nutritional supplement for animal feed and aquaculture diet. More particularly, the present invention relates to nutritional supplement for animal feed and aquaculture diet that includes omega 3 and omega 7.
BACKGROUND OF THE INVENTION
[002] Nutritional supplements are known to increase the general wellbeing of animals and resilience to illnesses. Nutritional supplements can be added directly to the animal’s ready-to-use diet or may be given as an additive in addition to the ready-to-use diet. For example, in fish, the addition of Omega-3 ’s to the diet is known to increase the immune- resilience of the fish, in particular salmon. In addition to immune resilience to bacterial and viral infectious diseases and flatworm’s, the immune system is important for resilience to parasite infestation, such as sea lice. Sea lice are parasitic copepods that cause large economic losses to salmon aquaculture worldwide. Frequent chemotherapeutic treatments are typically required to control this parasite, and alternative measures such as breeding for improved host resistance are desirable. Mechanical and chemical alterations induced by the sea lice parasite can have a profound effect on the host fish inflammatory and immune responses both directly (i.e. anti coagulation, vasodilation, necrosis, etc.) and indirectly through stress induced immunosuppression.
[003] Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are omega-3 fatty acids (found in oily fish and microalgae). These fatty acids, and their metabolic derivatives - oxylipins, are bio-active molecules, able to inhibit aspects of inflammation including leucocyte chemotaxis, adhesion molecule expression and leucocyte- endothelial adhesive interactions, production of inflammatory cytokines and T cell reactivity. In parallel, EPA and DHA give rise to anti-inflammatory and inflammation resolving and protecting. Mechanisms underlying the anti-inflammatory actions of
Omega-3 fatty acids include altered cell membrane phospholipid fatty acid composition,
disruption of lipid rafts, inhibition of activation of the pro-inflammatory transcription factors - reducing expression of inflammatory genes, and activation of the anti inflammatory transcription factors. The biological effects of oxylipins are mediated via interaction with receptors or intracellular effect.
[004] While EPA and DHA are known to be effective nutritional supplement in salmons’ diet, enabling limited relief form the ill effect of sea lice, EPA and DHA do not provide a complete shield against the sea lice infection. Accordingly, there is a need for a new nutritional supplement that may reduce the lice infection in a consistent, efficient and reliable way.
[005] SUMMARY OF THE INVENTION Some aspects of the invention may be directed to a nutritional supplement that may be included in a fish diet. The nutritional supplement may include a carrier oil; 22-30 wt.% Omega 3; and 8-20 wt.% Omega 7. In some embodiments, the carrier oil may be a vegetable oil. In some embodiments, the Omega 3 includes EPA and DHA fatty acids. In some embodiments, the Omega 3 includes is a mixture of EPA and DHA having ratios in the range of 1:10 to 10:1 wt.%. [006] Some additional aspects of the invention may be directed to a ready to use diet, that may include: 0.7-7.5 wt.% Omega 3; 2.0-7.7 wt.% Omega 7; and a mixture comprising protein, carbohydrate and oil. In some embodiments, the protein may be 5- 50 wt.% of the total weight of the ready to use fish diet. In some embodiments, the carbohydrate is 5-50 wt.% of the total weight of the ready to use diet. In some embodiments, the oil is 0.2-30 wt.% of the total weight of the ready to use fish diet. In some embodiments, the Omega 3 may include EPA and DHA fatty acids. In some embodiments, the carrier oil, may include at least one of: fish oil and vegetable oil. In some embodiments, the proteins may be originated from at least one of: Soy protein concentrate and animal byproducts
[007] Some other aspects of the invention may be directed to a method of making a nutritional supplement. Embodiments of the method include, adding to a mixer, Omega
3 containing oil and Omega 7 containing oil; and mixing together the Omega 3 and
Omega 7 containing oils. In some embodiments, the Omega 3 containing oil is at least one of: fish oil, Schizochytrium oil, GM Rapeseed oil and Anchovy oil. In some
embodiments, the Omega 7 containing oil is sea Buckthorn oil. In some embodiments, the final amount of Omega 3 in the nutritional supplement is 0.22-30 wt.%. In some embodiments, the final amount of Omega 7 in the nutritional supplement is 8-20 wt.%.
BRIEF DESCRIPTION OF THE DRAWINGS
[008] The subject matter regarded as the invention is particularly pointed out and distinctly claimed in the concluding portion of the specification. The invention, however, both as to organization and method of operation, together with objects, features, and advantages thereof, may best be understood by reference to the following detailed description when read with the accompanying drawings in which:
[009] Fig. 1 shows a flowchart of a method of making nutritional supplement according to some embodiments of the invention;
[0010] Fig. 2 is a graph showing feeding rates of juvenile salmons feed with standard a ready-to-use diet in comparison to feeding rates of juvenile salmons feed with a ready- to-use diet according to some embodiments of the invention..
[0011] It will be appreciated that for simplicity and clarity of illustration, elements shown in the figures have not necessarily been drawn to scale. For example, the dimensions of some of the elements may be exaggerated relative to other elements for clarity. Further, where considered appropriate, reference numerals may be repeated among the figures to indicate corresponding or analogous elements.
DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
[0012] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, and components have not been described in detail so as not to obscure the present invention.
[0013] Some aspects of the invention may be directed to providing and/or making nutritional supplement that can increase the immune-resilience of animals, in particular fish to skin diseases and skin parasites. Such a nutritional supplement may include
relatively high amounts of Omega 3 and Omega 7 fatty acids. A nutritional supplement according to some embodiments of the invention may be included in a ready-to-eat diet. [0014] Omega 3 is a known nutritional supplement in fish diets, although having a limited immune-resilience effect. In some embodiments, it was found that an addition of Omega 7 to a nutritional supplement including Omega 3, enhance the effect of the Omega 3 and further to add to the general wellbeing of the fish skin, thus may increase the resilience of the fish to sea lice as discussed herein below.
[0015] A nutritional supplement according to some embodiments of the invention may include 22-30 wt.% Omega 3 and 8-20 wt.% Omega 7 in a carrier oil. The oil may be any edible oil, that is edible by a specific animal or group of animals. For example, the oil can be a vegetable oil, a fish oil and the like.
[0016] In some embodiments, the Omega 3 may include any combination of EPA and DHA fatty acids. In some embodiments, the Omega 3 may include a mixture of EPA to DHA ratios ranging from 1:10 to 10:1. [0017] In some embodiments, the nutritional supplement may be included in a ready-to- use diet. Such ready-to-use diet may include 0.7-7.5 wt.% Omega 3, 2.0-4.0 wt.% Omega 7 and a mixture comprising protein, carbohydrate and oil. In some embodiments, the Omega 3 may include any combination of EPA and DHA fatty acids.
[0018] In some embodiments, the protein is 5-50 wt.% of the total weight of the ready to use fish diet. In some embodiments, the protein may be originated from at least one of: soy protein concentrate and animal byproducts.
[0019] In some embodiments, the carbohydrate is 5-50 wt.% of the total weight of the ready to use fish diet. In some embodiments, the oil is 0.2-30 wt.% of the total weight of the ready to use fish diet. In some embodiments, the oil may include at least one of: fish oil and vegetable oil.
[0020] An example of a fish diet according to some embodiments of the invention is given in table 1.
0021] Table 1: a fish diet according to some embodiments of the invention
[0022] Reference is now made to Fig. 1 which is a flowchart of a method of making a nutritional supplement according to some embodiments of the invention. In step 110, Omega 3 containing oil and Omega 7 containing oil maybe added to a mixer. In some embodiments, the mixer may be any commercial mixer configured to mix oils, for example, the mixer may include mechanical stirrers, magnetic stirrers, ultrasonic stirrers and the like. Table 2 includes some examples for origins of Omega 3 containing oil and
0023] Table 2: origins of Omega 3 containing oil and Omega 7 containing oil
[0024] In some embodiments, the Omega 3 containing oil may include both DHA and EPA. In some embodiments, the method may include adding DHA to an EPA containing oil, for example, 50 wt. % DHA originated from Schizochytrium oil may be added to Nannochloropsis oil.
[0025] In step 120, the Omega 3 and Omega 7 containing oils may be mixed in the mixer. In some embodiments, the final amount of Omega 3 in the nutritional supplement may be 22-30 wt.%. In some embodiments, the final amount of Omega 7 in the nutritional supplement may be 8-20 wt.%. Examples Example 1
[0026] In some embodiments, mixing 100 g of Sea Buckthorn oil with 500 g of Anchovy oil yields 600g of oil containing 57g of Omega-7 and 150g of Omega 3, which results in 11 wt.% Omega 7 and 25 wt.% Omega 3.
Example 2
[0027] In some embodiments, mixing 150g of Sea Buckthorn oil with 300 g of fish oil yields 450 of oil containing 45 g of Omega-7 and 90 g of Omega 3, which results in 10 wt.% Omega 7 and 20 wt.% Omega 3.
Example 3
[0028] In some embodiments, mixing lOOg of GM rapeseed oil, containing 30g Omega- 3, with lOOg of Schizochytrium oil, containing 50g Omega-3 and lOOg of Sea buckthorn oil, containing 30g Omega-7, which results in 10 wt.% Omega-7 and 26.6 wt.% Omega-
3.
Example 4
[0029] In some embodiments, mixing lOOg Nannochloropsis oil, containing llg of Omega-7 and 22g of EPA Omega-3, with 30g of Schizochytrium oil, containing 9g of Omega-3, which results in 8.5 wt. % Omega-7 and 24 wt.% Omega-3
Experimental Results
Experiment 1
[0030] The effect to adding both Omega 3 and Omega 7 to salmons’ diet was studied. A nutritional supplement according to some embodiments of the invention was provided to salmons and compared to a first diet that includes Omega 3 and a second diet that did not includeOmega 3 or Omega 7. Four 500-liter tanks having circular flow-through were used in this study, each was inhibited by 20 Atlantic Salmons. The temperature was 8.7 °C and the salinity 27.4 ppt. Each of the four tanks was provided with a different type of feed (e.g., diet).
[0031] The salmon in the first tank were fed with control, plant-based feed (denoted as
[P]). The salmon in the second tank were fed with Omega 3 enriched diet (denoted as
[P+03]). The salmon in the third tank were fed with Omega 7 enriched diet (denoted as
[P+07]). The salmon in the fourth tanks were fed with a diet enriched with nutritional supplement according to some embodiments of the invention containing both Omega 3
and Omega 7 (denoted as [P+03+07]) form a combination of Schizochytrium and Nannochloropsis extract olis.
[0032] All the fish were first fed for 10 days with the control diet [P] and then each tank was provided with a different diet for additional 12 days. Fish from the four dietary groups were challenged with L. salmonis (50 copepodites per fish). Lice counting and sampling were done when majority of lice reached preadult stages (16-20 days after infection). During a sampling period of four days, number, stage and gender of lice on each fish were recorded. The average number of lice detected on the salmons in each tank is summarized in table 3.
0033] Table 3: number of lice deleted on a salmon in each tank
[0034] As may be evident from table 3 the use of the nutritional supplement according to some embodiments of the invention provides the best protection against sea lice and significantly enhanced (-80%) infestation reduction. As can be seen the addition of Omega 3 provides limited protection form sea lice infection, in comparison to the combined effect of Omega 3 and Omega 7.
[0035] Oxylipins function not only as biological “repellants” but are actively involved in a wide range of functions on the skin, mucous and cellular levels. Their biological effects is mediated via interaction with receptors or intracellular effectors. Omega 7, active in skin and mucous membranes, enhances the efficiency and functionality of these receptors, thus enhancing the immune response and effectivity of Oxylipins. It is also noticed that the copepodites reacted to the fish by swimming fast towards them, and once attached “made their decision” weather to stay on the host fish or not. In the case of the different experimental groups their decision varied.
Experiment 2
[0036] The effect of a diet containing both Omega 3 and Omega 7, originated form algae oil, was tested on juvenile salmon smolts. When the salmon smolts reached mean weight of about 100 g they were put in six tanks having 1-meter dimeter. 200 Juvenile salmon
smolts inhibited each tank. The juvenile salmon smolts in 3 tanks were fed with a ready- to-eat diet according to some embodiments of the invention and in the other 3 thanks were fed with commercial Juvenile salmon smolts. Tables 4 and 5 summarizes the rew materials and nutrition content and values of each diet.
0038] Table 5- Nutrient composition as gram per kg diet
[0039] Reference is now made to Fig. 2 which shows the daily feeding rate of juvenile salmons fed with the control commercial diet (drack circles) in comparison to juvenile salmons fed with a diet according to embodiments of the invention. The initial daily feeding rate was lower for the salmons that were feed with algae enriched diet in comparison to the control diet. At later stages the feeding rate becomes similar for both
feeds. This difference could be related to the fact that that the juvenile salmons had been fed normal salmon food in earlier stages prior to the experiment.
[0040] Prior to placing the salmons in the tanks 5 small fish and 5 larger fish were tested for fatty acid analysis of the flesh. Additional measurements were taken from each tank after 2 month of feeding and after 3 months of feeding. The results at the end of the process after 3 month of feeding are summarized in table 6.
SFA = saturated fatty acids; MUFA = monounsaturated fatty acids; PUFA = polyunsaturated fatty acids; TFA = trans fatty acids; EPA = eicosapentaenoic acid; DPA = docosapentaenoic acid; DHA = docosahexaenoic acid; PA=Palmitoleic acid Omega 7 (C 16: ln-7)
[0041] Table 6 the percentage of fatty acids of total fatty acids measured in fish flash of fish fed with diet according to embodiments of the invention and a control diet. [0042] As can clearly shown from the table a major increase in the amount of fatty acid was detected in the salmon fed with the diet according to embodiments of the invention. More specifically a major increase was presented in the amounts of Omega 3 and Omega 7.
[0043] While certain features of the invention have been illustrated and described herein, many modifications, substitutions, changes, and equivalents will now occur to those of ordinary skill in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention. Further, features or elements of different embodiments may be used with or combined with other embodiments.
Claims
1. A nutritional supplement, comprising: a carrier oil;
22-30 wt.% Omega 3; and 8-20 wt.% Omega 7.
2. The nutritional supplement, wherein the carrier oil is a vegetable oil.
3. The nutritional supplement of claim 1 or claim 2, wherein the Omega 3 includes EPA and DHA fatty acids.
4. The nutritional supplement of claim 3, wherein the Omega 3 includes a mixture of EPA and DHA having ratios in the range of 1:10 to 10:1 wt.%.
5. A ready to use diet, comprising:
0.7-7.5 wt.% Omega 3;
2.0-7.7 wt.% Omega 7; and a mixture comprising protein, carbohydrate and oil.
6. The ready to use diet of claim 5, wherein the protein is 5-50 wt.% of the total weight of the ready to use diet.
7. The ready to use diet of claim 5 or claim 6, wherein the carbohydrate is 5-50 wt.% of the total weight of the ready to use diet.
8. The ready to use diet of any one of claims 5-7, wherein the oil is 0.2-30 wt.% of the total weight of the ready to use diet.
9. The ready to use diet of any one of claims 5-8, wherein the Omega 3 includes EPA and DHA fatty acids.
10. The ready to use diet of any one of claims 5-9, wherein the carrier oil, comprises at least one of: fish oil and vegetable oil.
11. The ready to use diet of any one of claims 5-10, wherein the proteins are originated from at least one of: Soy protein concentrate and animal byproducts.
12. A method of making a nutritional supplement, comprising: adding to a mixer, Omega 3 containing oil and Omega 7 containing oil; and mixing together the Omega 3 and Omega 7 containing oils.
13. The method of claim 12, wherein Omega 3 containing oil is at least one of: fish oil, Schizochytrium oil, GM Rapeseed oil and Anchovy oil.
14. The method of claim 12 or claim 13, wherein Omega 7 containing oil is sea
Buckthorn oil.
15. The method of claims 12-14, wherein the final amount of Omega 3 in the nutritional supplement is 0.22-30 wt.%.
16. The method of claims 12-15, wherein the final amount of Omega 7 in the nutritional supplement is 8-20 wt.%.
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IL293602A IL293602A (en) | 2019-12-05 | 2020-12-06 | Nutritional supplement for animal and aquaculture diet and method of making same |
EP20896719.0A EP4068951A4 (en) | 2019-12-05 | 2020-12-06 | Nutritional supplement for animal and aquaculture diet and method of making same |
CN202080084258.8A CN115003154B (en) | 2019-12-05 | 2020-12-06 | Nutritional supplement for animal and aquatic feeds and method for preparing the same |
US17/782,708 US20230014004A1 (en) | 2019-12-05 | 2020-12-06 | Nutritional supplement for animal and aquacutlure diet and method of making same |
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EP4068951A4 (en) | 2023-11-22 |
CN115003154B (en) | 2024-04-05 |
CN115003154A (en) | 2022-09-02 |
IL293602A (en) | 2022-08-01 |
US20230014004A1 (en) | 2023-01-19 |
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